[Do not merge] Adds more espresso-device samples

[JoseAlcerreca]

Included a test to check onDevice actions and a GMD definition.

It works on a regular emulator (Pixel Fold, API 34), but not from GMD (./gradlew foldApi34DebugAndroidTest)

com.example.android.testing.espresso.EspressoDeviceSample.OnDeviceTest > changeText_sameActivity[foldApi34] FAILED 
        androidx.test.espresso.device.controller.DeviceControllerOperationException: Failed to retrieve the orientation of the folding feature.
                at androidx.test.espresso.device.action.BookModeAction.perform(BookModeAction.kt:40)
Tests on foldApi34 failed: There was 1 failure(s).